Need a laptop hard drive recommendation

[M A V I C]

I'm pulling the SSD out of my laptop and putting it in my tower. I was thinking of putting the original HD back in but it seems kinda slow now. I know no traditional HD is going to be as fast as a SSD, but I'd still like to speed things up a bit over the stock Fujitsu 120GB 5400rpm drive. It looks like tests on it show it maxes out around 39MB/s.

I'm looking at the Seagate Momentus 5400.6 320GB drive, but haven't found any tests with it. It's $50 at newegg. I want at least a 120GB drive.

Thanks